Snow lands able to be used in Standard despite rotation
Opponent used Snow-Covered Mountains in deck for Standard, despite them rotating with Kaldheim. I found that if you build a Historic/Explorer deck in Deck Editor, but have all non-lands be legal in Standard, you can add Snow-Covered basic lands and select the deck for Standard format. The presence of Snow-Covered lands should prevent the deck from being used in Standard, as they should not be allowed in the current Standard format.
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DarkNecrofear#10334
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